Oliver County's 2026 population is estimated at 1,900, reflecting a 0.48% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Oliver County is the 47th largest county in North Dakota. The 2010 population was 1,841 and has grown 3.2% since 2010.
Data after 2023 is projected based on recent change
Overall: 46.1 years
Female: 44.9 years
Male: 47.4 years
There are 1,363 adults, (501 of whom are seniors) in Oliver County.
Female: 876 (47.6%)
Male: 963 (52.4%)
The racial composition of Oliver County includes 98.97% White, and smaller percentages for Two or more races and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 1,820 | 98.97% |
| Two or more races | 19 | 1.03% |
Oliver County 's average per capita income is $55,714. Household income levels show a median of $77,240. The poverty rate stands at 5.22%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $92,778 | - |
| Families | $87,500 | $113,688 |
| Households | $77,240 | $106,672 |
| Non Families | $60,417 | $79,598 |
Average Income
Median Household Income
Poverty Rate